C1 Advanced Writing Checker | AI Feedback
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C1 Advanced Writing

Check your C1 Advanced writing

Paste the complete C1 Advanced task and your response. The checker reviews the strength of your ideas, control of register and text type, organisation, and flexible use of C1-level language.

Check my writing free First complete evaluation free · No card required
220–260 words for each part
1 hour 30 minutes for both parts
Independent practice estimate, not an official result

Know the paper

Two responses, two different jobs

Choose the correct part and include the complete task. Missing source material or reader context makes useful feedback harder.

Check the official C1 Advanced exam format

Part 1

Compulsory task

One compulsory essay that develops two of the given points and explains which is more important.

Part 2

Choice of task

One task chosen from three options: a letter or email, proposal, report, or review.

The review map

What the checker reviews

The feedback follows the four assessment areas used across B2 First, C1 Advanced, and C2 Proficiency Writing.

01

Content

Whether the response answers the task fully, develops the required points, and gives the reader the information they need.

02

Communicative Achievement

Whether the text type, register, tone, and conventions achieve the intended effect on the target reader.

03

Organisation

How logically the response is arranged and how effectively ideas connect within and between paragraphs.

04

Language

The range, precision, flexibility, and accuracy of vocabulary and grammar used for the selected exam level.

Before you check your response

  • Include the full context, purpose, target reader, and every point in the question.
  • Keep the response within the 220–260 word guidance for the selected task.
  • Make the text type, register, paragraph purpose, and line of argument easy to recognise.

Turn this response into your next revision

Paste the complete task and your writing, then use the criterion feedback to choose the most useful change.

Try the Cambridge Writing Checker